Saturday’s HBO Boxing After Dark telecast begins at 4 p.m. (ET/PT) with super world featherweight title fight between Simpiwe Vetyeka vs. Nonito Donaire from Macau. The main event of the day live at 4:45 p.m. (ET/PT) features a highly anticipated 12-round title rematch between super middleweight title-holder Carl Froch and top contender and arch-rival George Groves.